Have you ever been in a tense or difficult situation when you suddenly burst into a fit of giggles? Or feel a release or rejuvenated after watching a side-splittingly funny movie?

It turns out there’s some scientific veracity behind the old adage “laughter is the best medicine.”

“Laughter activates the body’s natural relaxation response. It’s like internal jogging, providing a good massage to all internal organs while also toning abdominal muscles,” says Dr. Gulshan Sethi, head of cardiothoracic surgery at the Tucson Medical Center and faculty at the University of Arizona’s Center for Integrative Medicine.

Perhaps that’s why Deepak Chopra says the healthiest response to life is laughter.

Studies have found that laughter can have healing properties; and it’s contagious. Here are six reasons why you should start laughing today.

Laughter is Contagious

The discovery of mirror neurons—what causes you to smile when someone smiles at you—gives credence to the belief that laughter is contagious.

When you’re feeling down finding friends to laugh with can help your brain trigger its own laughter response and foster closeness, both of which contribute to your sense of well-being. Why do you think that sense of humor is such an important trait when looking for a partner? We like the feeling of shared laughter and our body wants as much of this feeling as possible.

Laughter Reduces the Stress Response

When you laugh there’s a contraction of muscles, which increases blood flow and oxygenation. This stimulates the heart and lungs and triggers the release of endorphins that help you to feel more relaxed both physically and emotionally.

Laughter Increases Resilience

The ability to acknowledge mistakes without becoming angry or frustrated plays an important role in developing resilience. Laughing at mistakes allows us to recognize that making errors is a part of being human.

Laughter Combats Depression

Studies support laughter as a great way to get outside the downward spiral to depression. Being unhappy can become a pattern or mindset if we don’t step outside of ourselves occasionally. By being a witness to our situation rather than allowing ourselves to feel the victim we can find the humor in it and see with fresh eyes. Even forced laughter releases a cocktail of hormones, neuropeptides, and dopamine that can start to improve your mood.

Laughter Relieves Pain

People who are laughing don’t experience less pain, however they report being less bothered by the pain they do experience. It’s not about changing pain levels. The amount of pain remains the same, but your perceived pain levels reduce and your belief that you can cope increases. Laughter by itself isn’t the solution but it can help a person overcome discomfort.

Quick Hacks to Bring More Laughter Into Your Life

Make humor a priority by reading a funny book, watching a comedy, or listening to your favorite comedian.

Share laughter with friends. Spend more time with people who have fun.

Remember that life is funny. The ability to laugh at yourself makes you attractive to others and can help relieve your own stress. Focus on finding the laughable moments in your day, and then tell a friend your funny story as a way to increase the power of laughter by sharing.

Know what isn’t funny. Laughing at the expense of others isn’t funny. Be discerning about your humor by laughing with—not at—people.

Check out when The Comedy Get Down is coming to your city and come see the Doctors of Comedy.